♦ 



c 



Fig. 103. Common contaminants. A and B, species of Aspergillus. C. Penicillium. D, 

 perithecium of Aspergillus containing ascospores. E, Scopulariopsis. F, Hormodendrum. (-'. 

 Chaetomium. H, R. nigricans. /. Mycoderma. ./, Alternaria. K. Trichothecium. L, Fusarium. 



355 



